Your task is to calculate the sum of some integers.

Input contains multiple test cases, and one case one line. Each case starts with an integer N( 0 < N<=500 ), and then N integers follow in the same line.

For each test case you should output the sum of N integers in one line, and with one line of output for each line in input.

提供一个参考程序： C语言： #include"stdio.h" ///也可以使用 < > int main() { int n,x,sum; while(scanf("%d", &n) != EOF) /// EOF: end of file 文件结束标志 { sum = 0; while(n--) { scanf("%d", &x); sum += x; } printf("%d\n", sum); } return 0; } C++: #include"iostream" ///也可以使用 < > using namespace std; int main() { int n,x,sum; while(cin >> n) { sum = 0; while(n--) { cin >> x; sum += x; } cout << sum << endl; } return 0; }